The words complement and compliment are commonly confused in English. Once you've read through this lesson, your friends will compliment you on your mastery of English.
The phrase could have refers to something that was possible but did not occur in the past. In informal speech, it is contracted to could've, not could of.
English has two verbs, "to do" and "to make," that are both equivalent to a single verb in some languages, which makes it difficult for speakers of those languages to know which one to use in any given situation. Understanding the difference in meaning is key to knowing which verb you need.
The Latin abbreviations e.g. and i.e. are commonly used in English, and nearly as commonly mixed up. If this sounds like you, i.e., you are never sure whether to use e.g. or i.e., read through this lesson to learn the difference.
The English words either and neither can cause some problems for native and non-native speakers of English. Sometimes you can use either one and sometimes you have to choose either one or the other, but neither one is very difficult.
Everyday and every day are commonly confused in English. There's no difference in pronunciation, but using the wrong one when writing is a mistake in the everyday English you use every day.
The words fewer and less are commonly confused in English, or rather, less is used while fewer tends to fall by the wayside. You'll be less confused and make fewer mistakes after reading through this lesson.
The English words good and well are often confused by native and non-native speakers of English - this is a good lesson that will put you well on your way to understanding the difference.
Whether to spell any given word with ie or ei can often stump native English speakers. In school many of us were taught the mnemonic device "I before E except after C or when sounding like A as in 'neighbor' and 'weigh.' " This is a fairly good rule, but it has a lot of exceptions.
Mistakes made with the English pronouns I and me have been increasing exponentially for years. The difference is actually very simple - let me explain it to you.
The English verbs imply and infer are often confused by English speakers. That's not to imply that you're one of them, but if that's how you infer it, go ahead and read this lesson.